Back roll support and tension device for gill boxes



J. V. RODDY March 17, 1936.

BACK ROLL SUPPORT AND TENSION DEVICE FOR GILL BOXES v Filed April 17, 1935 2 Sheets-Sheet 1 INVENTOR.

ATTORNEYJ J. V. RODDY March 17, 1936.

BACK ROLL SUPPORT AND TENSION DEVICE FOR GILL BOXES Filed April 17, 1935 2 Sheets-Sheet 2 INVENTOR.

ATTORNEYS Patented Mar. 17, 1936 UNITED STATES BACK ROLL SUPPORT AND TENSION DEVICE FOR GILL BOXES James V. Roddy, Whitinsville, Mass, assignor to Whitin Machine Works, Whitinsville, Mass., a corporation of Massachusetts Application April 1'7, 1935, Serial No. 16,862

1 Claim.

This invention relates to gill boxes and particularly to improved means for delivering wool or other fibre thereto.

It is the general object of my invention to provide improved feeding and tensioning mechanism for gill boxes, so designed that it may be economically manufactured and so constructed that the product of the machine will be improved in quality.

0 My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claim.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a sectional front elevation of a portion of a gill box embodying my improvements;

Fig. 2 is a side elevation thereof, with certain parts shown in section, and

Fig. 3 is a sectional rear elevation, taken along the line 33 in Fig. 2.

Referring to the drawings, I have shown portions of a gill box of the intersecting type and having a frame II], a set of upper fallers I I, a set of lower fallers I2 and a pair of delivery rolls I3 and I4, all of the usual construction.

My invention relates particularly to the back or feed rolls [5 and I6 and to the devices for supporting and tensioning these feed rolls.

The lower feed roll I5 is mounted in fixed open bearings in stands or supports 20 which are each adjustably secured to the frame ID of the gill box by bolts 2| extending through elongated slots 22. By loosening the bolts 2 I, the feed rolls may be adjusted forward or rearward along the path of travel of the fibre F.

The upper feed roll I6 is mounted in inverted open bearings in levers I'I, pivoted at I8 to upward projections I9 of the supports 20. A screw 22 (Fig. 3) is threaded in each lever II and is provided with a hand wheel 23 by which it may be conveniently turned. A look screw 24 is provided for clamping the screw 22 in adjusted position.

The lower end of each screw 22 engages a plunger 25 slidable in a recess 26 in a depending cylindrical projection 21, preferably formed integral with its'associated support 20. A spring 30 is placed in each cylindrical recess 26 and engages a plunger 25 at its upper end and a block or washer 3| at its lower end. Each block or washer 3| is engaged by a lower or auxiliary adjusting screw 32, provided with a lock nut 33. Clamping 55 screws 34 provide means for securing the plungers 25 in fixed position when desired.

Having described the details of construction of my improved feeding and tensioning mechanism, the use and advantages thereof will be 60 readily apparent. Under normal conditions, the

rolls I5 and I 6 will be pressed together to engage and feed the fibre F toward the intersecting fallers II and I2, and the tension or pressure on the fibre may be regulated by the hand-adjusting screws 22 and also by the lower or aux- 5 iliary adjusting screws 32.

As the feed rolls, the tension devices and the supports together form an assembled unit, these parts may be adjusted along the path of travel of the fibre in either direction, and the feed rolls 10 may thus be placed very much closer to the fallers than in the usual commercial construction, eliminating the presser roll and plate commonly provided between the feed rolls and the fallers.

Furthermore, the feed rolls may be very quickly l5 and easily removed for cleaning purposes, and this removal and replacement of the feed rolls may be accomplished without changing the spring pressure or the setting of the adjusting screws 32. 20

To remove the rolls, the plungers 25 are first locked in their operative positions by the screws 34, after which the screws 24 are loosened. The adjusting screws 22 are then withdrawn from the levers II sufliciently to allow the rear end por- 25 tions of the levers II to rest on the plungers 25, as shown by the dotted lines in Fig. 3. There will then be no pressure on the feed rolls and they may be easily removed, cleaned and replaced as desired, after which the screws 22 are ad- 30 vanced and locked and the screws 34 are loosened to release the plungers 25.

My improved construction also permits a reduction in the diameter of the back or feed rolls, thus reducing the expense compared with the 35 previous construction, while fully maintaining the efiiciency of operation.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than 40 as set forth in the claim, but what I claim is:-

In a gill box, a pair of supports, a lower feed roll rotable in open bearings on said supports,

a bearing lever pivoted on each support and having an inverted open hearing at one end of each lever, an upper feed roll rotatable in said inverted open bearings, each of said supports having a downwardly extending spring-holding recess formed therein, springs mounted in said recesses of said supports, and applying upward pressure to the rear end portions of said bearing levers, means to adjust the tension of said springs, a plunger slidable in each recess and interposed between the springs and the adjusting means, and devices to clamp said plungers in fixed position in said recesses, whereby the spring tension on the bearing levers and upper roll may be relieved to permit removal or replacement of said roll.

JAMES V. RODDY. 

